Musical whistle



FIG. 1 is a front perspective view of a musical whistle showing my new design;

FIG. 2 is a side elevational view thereof shown on a slightly reduced scale, the side opposite being a mirror image;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a bottom plan view thereof; 

The ornamental design for a musical whistle, substantially as shown and described. 